wip
Dependents: EthernetInterface_vz
Fork of Socket by
TCPSocketConnection.cpp
- Committer:
- klauss
- Date:
- 2015-03-10
- Revision:
- 23:9a1f704278b3
- Parent:
- 19:434906b5b977
File content as of revision 23:9a1f704278b3:
/* Copyright (C) 2012 mbed.org, MIT License * * Permission is hereby granted, free of charge, to any person obtaining a copy of this software * and associated documentation files (the "Software"), to deal in the Software without restriction, * including without limitation the rights to use, copy, modify, merge, publish, distribute, * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all copies or * substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #include "TCPSocketConnection.h" #include <cstring> using std::memset; using std::memcpy; TCPSocketConnection::TCPSocketConnection() : _is_connected(false) { } int TCPSocketConnection::connect(const char* host, const int port) { if (init_socket(SOCK_STREAM) < 0) return -1; if (set_address(host, port) != 0) return -1; if (lwip_connect(_sock_fd, (const struct sockaddr *) &_remoteHost, sizeof(_remoteHost)) < 0) { close(); return -1; } _is_connected = true; return 0; } bool TCPSocketConnection::is_connected(void) { return _is_connected; } int TCPSocketConnection::send(char* data, int length) { if ((_sock_fd < 0) || !_is_connected) return -1; if (!_blocking) { TimeInterval timeout(_timeout); if (wait_writable(timeout) != 0) return -1; } int n = lwip_send(_sock_fd, data, length, 0); _is_connected = (n != 0); return n; } // -1 if unsuccessful, else number of bytes written int TCPSocketConnection::send_all(char* data, int length) { if ((_sock_fd < 0) || !_is_connected) return -1; int writtenLen = 0; TimeInterval timeout(_timeout); while (writtenLen < length) { if (!_blocking) { // Wait for socket to be writeable if (wait_writable(timeout) != 0) return writtenLen; } int ret = lwip_send(_sock_fd, data + writtenLen, length - writtenLen, 0); if (ret > 0) { writtenLen += ret; continue; } else if (ret == 0) { _is_connected = false; return writtenLen; } else { return -1; //Connnection error } } return writtenLen; } int TCPSocketConnection::receive(char* data, int length) { if ((_sock_fd < 0) || !_is_connected) return -1; if (!_blocking) { TimeInterval timeout(_timeout); if (wait_readable(timeout) != 0) return -1; } int n = lwip_recv(_sock_fd, data, length, 0); _is_connected = (n != 0); return n; } // -1 if unsuccessful, else number of bytes received int TCPSocketConnection::receive_all(char* data, int length) { if ((_sock_fd < 0) || !_is_connected) return -1; int readLen = 0; TimeInterval timeout(_timeout); while (readLen < length) { if (!_blocking) { //Wait for socket to be readable if (wait_readable(timeout) != 0) return readLen; } int ret = lwip_recv(_sock_fd, data + readLen, length - readLen, 0); if (ret > 0) { readLen += ret; } else if (ret == 0) { _is_connected = false; return readLen; } else { return -1; //Connnection error } } return readLen; } int TCPSocketConnection::get_fd(){ return _sock_fd; }